Description

An issue was discovered in write_tpt_entry in drivers/infiniband/hw/cxgb4/mem.c in the Linux kernel through 5.3.2. The cxgb4 driver is directly calling dma_map_single (a DMA function) from a stack variable. This could allow an attacker to trigger a Denial of Service, exploitable if this driver is used on an architecture for which this stack/DMA interaction has security relevance.

References

https://lore.kernel.org/lkml/[email protected]

https://seclists.org/bugtraq/2019/Nov/11

http://packetstormsecurity.com/files/155212/Slackware-Security-Advisory-Slackware-14.2-kernel-Updates.html

https://usn.ubuntu.com/4208-1/

https://usn.ubuntu.com/4210-1/

https://usn.ubuntu.com/4211-2/

https://usn.ubuntu.com/4211-1/

https://usn.ubuntu.com/4226-1/

https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html

https://www.oracle.com/security-alerts/cpuApr2021.html

Details

Risk Information

CVSS v2

CVSS v3